Improved freeing-tool, screw, and jewel-setter combined



CHARLES E. lEVAID, OF LEESBURG, VIRGINIA.

Letters Patent No. 89,568, dated May 4, 1869.

IMPROVED FREEINGr-TOOL, SCREW, AND JBWEL-SETTER COMBINED.

Tlle Schedule referred to in these Letters Patent and making part of thesame.

To all whom 'it may conce/rn Be it known that 1, CHARLES E. EVARD, ofLeesburg, in the county of Loudoun, and State of Virginia, haveinventedanew and useful Improvementin Watch- Makers Tools; and I doherebydeclare the following to be a suiciently complete and cleardescription of thc same, to enable one skilled in the art to which itappertains, to carry it intoeffect, reference being had to theaccompanying drawings, making part of this speciiication.

My improved tool is analogous, in many respects, to the freeing-tool incommon use among watchmakers; but by constructing it as hereinafter'dcscribed, and adapting to it a complete set of instruments, I amenabled to provide the watch-maker with a combined apparatus, with whichhe can set screws or jewels of any size and shape, in any necessarymanner, form brass pivots or studs, oil-cups, countcrsinks, 85o., setand round pillars, and do all analogous kinds of work, with ease andprecision, without the use of a lathe.

In the drawings- Figure 1 is a perspective View of the complete tool,securedin position upon a watch-plate, by means of a hand-vise.

Figure 2 represents, in elevation, the cutter-holder or stock, with itslower end in section, to exhibit the construction of the socket therein.

Figure 3 consists of diagrams, on a larger scale, of various forms ofcutters, burnishers, Sto., hereinafter described.

D, figs. 1 and 2, represents a stock, provided, at its lower end, with atapering socket, d, opening into a transverse notch or recess d, thesaid socket and recess being formed to receive, and firmly hold, theshanks of the various cutters hereinafter described, or to permit theirready removal when required.

At its upper end, the stock 1) terminates in a point, d, to which therequisite pressure is applied, by any suitable surface, when the tool isused with a bow.

rlhe bow works, in the usual manner, in the groove of a head, F, whichis rigidly attached to the stock D. The edges of the head are knurled ormilled, to adapt it for use by hand without the bow.

E is a sliding collar, .secured by a set-screw, e, at any height on thestock I),for the purpose of gauging the depth to which the cutters maywork.

The stock I) works in an upright guide, consisting of 'two members, -Hand I, H constituting afoot, by which the tool may bc held in position,on the plate B, by means of pliers, hand-vise C, or other means, and I,an upper part, screwed upon the foot H, and so split or divided at M asto be firmly clamped thereto by a screw, K. I

L is a set-screw, to hold the guide or socket G 1n any position in whichit may be set,

The cutting, bnrnishing, and settiiig-instruments used in connectionwith the above tool, are made of steel, suitably hardened, in thedifferent forms represented in the drawings, in which N os. 1 and 6represent the two extreme sizes of agraduatcd set of dat cutters; 7 and9 represent round or straight countersinkers and bevcllers; 10, oil-cupcutters; 11, brasspivot cutter, for clicks; 12 and 13, round-cutters,for convex jewels; 14, pillar-romlder, to round large or small pillars;l5, tl'nezul-cutter; i7, burnisher; 19 and 2l) pointed and hollowcentriugtools; and 1S, dial-bevcller.

All of these tools are furnished with shanks, a, corresponding, in shapeand size, to the socket (l, in the stock D, and have a notch orshoulder, a, formed upon the upper end, as shown inthe drawings, g. 3,which, when the tool is inserted in the stock, extends upwards, throughthe socket d, into the recess d, and, by the contact of the two datsurfaces thus brought together by a lap-joint, the tool is heldsecurely, and prevented from turning around in the stock while in use.

By inserting the tools or cutters in the manner described, they may beeasily and securely inserted,'and removed, also, without trouble and, inaddition to this, in case the cutter should get jammcdin, it may becasily removed by means of a suitable instrument inserted in the recessdf, without breaking, and with little expense of time or trouble.

That the value 'of my invention may be made more clearly manifest, letus supposethat it is desired to set a flat jewel in a watch-plate, orother substance.

To do this fasten the foot H to the plate, as represented in iig. l;drill a hole, at the designated place, with a small cutter; then,without removing the foot .II from the plate, take a flat cutter, thesize of the jewel, place it in position in the cutter-holder D, and adjust it to the depth required to be cut, by the aid of the screw-gauge orbody composed of the parts I, K, L, M, and the regulating slide-gauge Ec.

After thehole has thus been cut, take out the dat cutter and put in itsplace the thread-cutter, No. 15, to cut the thread or bearing.

This done, apply the tool to the other side of the plate B, centring itby No. 19; then cut the bevel with No. 7 or J cutter; reverse thc toolagain; replace it in position by means of the centring-tool; then applyburnisher No. 17 place the jewel in position, and burnish the bearingdown, and the work is complete.

1f the object in which the jewel or screw to be set, or hole to bedrilled is small, fasten it to alarger plate or flat surface, by meansof wax or shellac, and proceed as under other circumstances.

rlhe adjustment afforded by the screw-connection between the parts H andI of the guide, affords means for the most delicate adjustment of thedepth of peuctration. This is especially useful iii-sinking concentricholes of different diameter and depth.

By using my invention, no lathe is required, and the operator can holdhis work while operating with the tool, iu the most advantageouspositions, and be enabled to change it, without delay or trouble, in amoment. It is easily adj usted to all the kinds of work it is calculatedto perform,` and so simple in its operation that any one may use it withease and success.

rlhe cutting, bnrnishing, and setting-instruments being constructed asset forth, give increased facilities for Working, the construction ofthe tool being such as to permit the tools being fixed in the cutter--holder D, or removed Without displacing the foot H from the platte B.

The cutting of the hole, the beveiiing, and the setting of the screw orjewel being performed with but one change of the tool from the work.

My improved tool is substantially the seme as those now in use, exceptthat the edge of its grooved head is milled, and in that its holder, atthe upper end of the socket, is notched, for the purpose of formingascarf-joint with cutting, setting, or burnishing-instruments, whoseextremities are likewise notched, to correspond thereto. But I do notclaim the application GS. ED. EVARD.

Witnesses:

WM. H. BRERETON, Jr., JNO. S. SLA'rnR.

